nixpkgs/nixos/modules/services/misc/gitlab.nix
2019-01-30 11:29:32 -08:00

650 lines
22 KiB
Nix

{ config, lib, pkgs, ... }:
# TODO: support non-postgresql
with lib;
let
cfg = config.services.gitlab;
ruby = cfg.packages.gitlab.ruby;
gitlabSocket = "${cfg.statePath}/tmp/sockets/gitlab.socket";
gitalySocket = "${cfg.statePath}/tmp/sockets/gitaly.socket";
pathUrlQuote = url: replaceStrings ["/"] ["%2F"] url;
pgSuperUser = config.services.postgresql.superUser;
databaseConfig = {
production = {
adapter = "postgresql";
database = cfg.databaseName;
host = cfg.databaseHost;
password = cfg.databasePassword;
username = cfg.databaseUsername;
encoding = "utf8";
};
};
gitalyToml = pkgs.writeText "gitaly.toml" ''
socket_path = "${lib.escape ["\""] gitalySocket}"
bin_dir = "${cfg.packages.gitaly}/bin"
prometheus_listen_addr = "localhost:9236"
[git]
bin_path = "${pkgs.git}/bin/git"
[gitaly-ruby]
dir = "${cfg.packages.gitaly.ruby}"
[gitlab-shell]
dir = "${cfg.packages.gitlab-shell}"
${concatStringsSep "\n" (attrValues (mapAttrs (k: v: ''
[[storage]]
name = "${lib.escape ["\""] k}"
path = "${lib.escape ["\""] v.path}"
'') gitlabConfig.production.repositories.storages))}
'';
gitlabShellConfig = {
user = cfg.user;
gitlab_url = "http+unix://${pathUrlQuote gitlabSocket}";
http_settings.self_signed_cert = false;
repos_path = "${cfg.statePath}/repositories";
secret_file = "${cfg.statePath}/config/gitlab_shell_secret";
log_file = "${cfg.statePath}/log/gitlab-shell.log";
custom_hooks_dir = "${cfg.statePath}/custom_hooks";
redis = {
bin = "${pkgs.redis}/bin/redis-cli";
host = "127.0.0.1";
port = 6379;
database = 0;
namespace = "resque:gitlab";
};
};
redisConfig.production.url = "redis://localhost:6379/";
secretsConfig.production = {
secret_key_base = cfg.secrets.secret;
otp_key_base = cfg.secrets.otp;
db_key_base = cfg.secrets.db;
openid_connect_signing_key = cfg.secrets.jws;
};
gitlabConfig = {
# These are the default settings from config/gitlab.example.yml
production = flip recursiveUpdate cfg.extraConfig {
gitlab = {
host = cfg.host;
port = cfg.port;
https = cfg.https;
user = cfg.user;
email_enabled = true;
email_display_name = "GitLab";
email_reply_to = "noreply@localhost";
default_theme = 2;
default_projects_features = {
issues = true;
merge_requests = true;
wiki = true;
snippets = true;
builds = true;
container_registry = true;
};
};
repositories.storages.default.path = "${cfg.statePath}/repositories";
repositories.storages.default.gitaly_address = "unix:${gitalySocket}";
artifacts.enabled = true;
lfs.enabled = true;
gravatar.enabled = true;
cron_jobs = { };
gitlab_ci.builds_path = "${cfg.statePath}/builds";
ldap.enabled = false;
omniauth.enabled = false;
shared.path = "${cfg.statePath}/shared";
gitaly.client_path = "${cfg.packages.gitaly}/bin";
backup.path = "${cfg.backupPath}";
gitlab_shell = {
path = "${cfg.packages.gitlab-shell}";
hooks_path = "${cfg.statePath}/shell/hooks";
secret_file = "${cfg.statePath}/config/gitlab_shell_secret";
upload_pack = true;
receive_pack = true;
};
workhorse.secret_file = "${cfg.statePath}/.gitlab_workhorse_secret";
git.bin_path = "git";
monitoring = {
ip_whitelist = [ "127.0.0.0/8" "::1/128" ];
sidekiq_exporter = {
enable = true;
address = "localhost";
port = 3807;
};
};
extra = {};
uploads.storage_path = cfg.statePath;
};
};
gitlabEnv = {
HOME = "${cfg.statePath}/home";
UNICORN_PATH = "${cfg.statePath}/";
GITLAB_PATH = "${cfg.packages.gitlab}/share/gitlab/";
GITLAB_STATE_PATH = cfg.statePath;
GITLAB_UPLOADS_PATH = "${cfg.statePath}/uploads";
SCHEMA = "${cfg.statePath}/db/schema.rb";
GITLAB_LOG_PATH = "${cfg.statePath}/log";
GITLAB_SHELL_PATH = "${cfg.packages.gitlab-shell}";
GITLAB_SHELL_CONFIG_PATH = "${cfg.statePath}/shell/config.yml";
GITLAB_SHELL_SECRET_PATH = "${cfg.statePath}/config/gitlab_shell_secret";
GITLAB_SHELL_HOOKS_PATH = "${cfg.statePath}/shell/hooks";
GITLAB_REDIS_CONFIG_FILE = pkgs.writeText "redis.yml" (builtins.toJSON redisConfig);
prometheus_multiproc_dir = "/run/gitlab";
RAILS_ENV = "production";
};
gitlab-rake = pkgs.stdenv.mkDerivation rec {
name = "gitlab-rake";
buildInputs = [ pkgs.makeWrapper ];
dontBuild = true;
unpackPhase = ":";
installPhase = ''
mkdir -p $out/bin
makeWrapper ${cfg.packages.gitlab.rubyEnv}/bin/rake $out/bin/gitlab-rake \
${concatStrings (mapAttrsToList (name: value: "--set ${name} '${value}' ") gitlabEnv)} \
--set PATH '${lib.makeBinPath [ pkgs.nodejs pkgs.gzip pkgs.git pkgs.gnutar config.services.postgresql.package pkgs.coreutils pkgs.procps ]}:$PATH' \
--set RAKEOPT '-f ${cfg.packages.gitlab}/share/gitlab/Rakefile' \
--run 'cd ${cfg.packages.gitlab}/share/gitlab'
'';
};
smtpSettings = pkgs.writeText "gitlab-smtp-settings.rb" ''
if Rails.env.production?
Rails.application.config.action_mailer.delivery_method = :smtp
ActionMailer::Base.delivery_method = :smtp
ActionMailer::Base.smtp_settings = {
address: "${cfg.smtp.address}",
port: ${toString cfg.smtp.port},
${optionalString (cfg.smtp.username != null) ''user_name: "${cfg.smtp.username}",''}
${optionalString (cfg.smtp.password != null) ''password: "${cfg.smtp.password}",''}
domain: "${cfg.smtp.domain}",
${optionalString (cfg.smtp.authentication != null) "authentication: :${cfg.smtp.authentication},"}
enable_starttls_auto: ${toString cfg.smtp.enableStartTLSAuto},
openssl_verify_mode: '${cfg.smtp.opensslVerifyMode}'
}
end
'';
in {
options = {
services.gitlab = {
enable = mkOption {
type = types.bool;
default = false;
description = ''
Enable the gitlab service.
'';
};
packages.gitlab = mkOption {
type = types.package;
default = pkgs.gitlab;
defaultText = "pkgs.gitlab";
description = "Reference to the gitlab package";
example = "pkgs.gitlab-ee";
};
packages.gitlab-shell = mkOption {
type = types.package;
default = pkgs.gitlab-shell;
defaultText = "pkgs.gitlab-shell";
description = "Reference to the gitlab-shell package";
};
packages.gitlab-workhorse = mkOption {
type = types.package;
default = pkgs.gitlab-workhorse;
defaultText = "pkgs.gitlab-workhorse";
description = "Reference to the gitlab-workhorse package";
};
packages.gitaly = mkOption {
type = types.package;
default = pkgs.gitaly;
defaultText = "pkgs.gitaly";
description = "Reference to the gitaly package";
};
statePath = mkOption {
type = types.str;
default = "/var/gitlab/state";
description = "Gitlab state directory, logs are stored here.";
};
backupPath = mkOption {
type = types.str;
default = cfg.statePath + "/backup";
description = "Gitlab path for backups.";
};
databaseHost = mkOption {
type = types.str;
default = "127.0.0.1";
description = "Gitlab database hostname.";
};
databasePassword = mkOption {
type = types.str;
description = "Gitlab database user password.";
};
databaseName = mkOption {
type = types.str;
default = "gitlab";
description = "Gitlab database name.";
};
databaseUsername = mkOption {
type = types.str;
default = "gitlab";
description = "Gitlab database user.";
};
host = mkOption {
type = types.str;
default = config.networking.hostName;
description = "Gitlab host name. Used e.g. for copy-paste URLs.";
};
port = mkOption {
type = types.int;
default = 8080;
description = ''
Gitlab server port for copy-paste URLs, e.g. 80 or 443 if you're
service over https.
'';
};
https = mkOption {
type = types.bool;
default = false;
description = "Whether gitlab prints URLs with https as scheme.";
};
user = mkOption {
type = types.str;
default = "gitlab";
description = "User to run gitlab and all related services.";
};
group = mkOption {
type = types.str;
default = "gitlab";
description = "Group to run gitlab and all related services.";
};
initialRootEmail = mkOption {
type = types.str;
default = "admin@local.host";
description = ''
Initial email address of the root account if this is a new install.
'';
};
initialRootPassword = mkOption {
type = types.str;
description = ''
Initial password of the root account if this is a new install.
'';
};
smtp = {
enable = mkOption {
type = types.bool;
default = false;
description = "Enable gitlab mail delivery over SMTP.";
};
address = mkOption {
type = types.str;
default = "localhost";
description = "Address of the SMTP server for Gitlab.";
};
port = mkOption {
type = types.int;
default = 465;
description = "Port of the SMTP server for Gitlab.";
};
username = mkOption {
type = types.nullOr types.str;
default = null;
description = "Username of the SMTP server for Gitlab.";
};
password = mkOption {
type = types.nullOr types.str;
default = null;
description = "Password of the SMTP server for Gitlab.";
};
domain = mkOption {
type = types.str;
default = "localhost";
description = "HELO domain to use for outgoing mail.";
};
authentication = mkOption {
type = types.nullOr types.str;
default = null;
description = "Authentitcation type to use, see http://api.rubyonrails.org/classes/ActionMailer/Base.html";
};
enableStartTLSAuto = mkOption {
type = types.bool;
default = true;
description = "Whether to try to use StartTLS.";
};
opensslVerifyMode = mkOption {
type = types.str;
default = "peer";
description = "How OpenSSL checks the certificate, see http://api.rubyonrails.org/classes/ActionMailer/Base.html";
};
};
secrets.secret = mkOption {
type = types.str;
description = ''
The secret is used to encrypt variables in the DB. If
you change or lose this key you will be unable to access variables
stored in database.
Make sure the secret is at least 30 characters and all random,
no regular words or you'll be exposed to dictionary attacks.
'';
};
secrets.db = mkOption {
type = types.str;
description = ''
The secret is used to encrypt variables in the DB. If
you change or lose this key you will be unable to access variables
stored in database.
Make sure the secret is at least 30 characters and all random,
no regular words or you'll be exposed to dictionary attacks.
'';
};
secrets.otp = mkOption {
type = types.str;
description = ''
The secret is used to encrypt secrets for OTP tokens. If
you change or lose this key, users which have 2FA enabled for login
won't be able to login anymore.
Make sure the secret is at least 30 characters and all random,
no regular words or you'll be exposed to dictionary attacks.
'';
};
secrets.jws = mkOption {
type = types.str;
description = ''
The secret is used to encrypt session keys. If you change or lose
this key, users will be disconnected.
Make sure the secret is an RSA private key in PEM format. You can
generate one with
openssl genrsa 2048
'';
};
extraConfig = mkOption {
type = types.attrs;
default = {};
example = {
gitlab = {
default_projects_features = {
builds = false;
};
};
};
description = ''
Extra options to be merged into config/gitlab.yml as nix
attribute set.
'';
};
};
};
config = mkIf cfg.enable {
environment.systemPackages = [ pkgs.git gitlab-rake cfg.packages.gitlab-shell ];
# Redis is required for the sidekiq queue runner.
services.redis.enable = mkDefault true;
# We use postgres as the main data store.
services.postgresql.enable = mkDefault true;
# Use postfix to send out mails.
services.postfix.enable = mkDefault true;
users.users = [
{ name = cfg.user;
group = cfg.group;
home = "${cfg.statePath}/home";
shell = "${pkgs.bash}/bin/bash";
uid = config.ids.uids.gitlab;
}
];
users.groups = [
{ name = cfg.group;
gid = config.ids.gids.gitlab;
}
];
systemd.tmpfiles.rules = [
"d /run/gitlab 0755 ${cfg.user} ${cfg.group} -"
"d ${gitlabEnv.HOME} 0750 ${cfg.user} ${cfg.group} -"
"d ${cfg.backupPath} 0750 ${cfg.user} ${cfg.group} -"
"d ${cfg.statePath}/builds 0750 ${cfg.user} ${cfg.group} -"
"d ${cfg.statePath}/config 0750 ${cfg.user} ${cfg.group} -"
"d ${cfg.statePath}/db 0750 ${cfg.user} ${cfg.group} -"
"d ${cfg.statePath}/log 0750 ${cfg.user} ${cfg.group} -"
"d ${cfg.statePath}/repositories 2770 ${cfg.user} ${cfg.group} -"
"d ${cfg.statePath}/shell 0750 ${cfg.user} ${cfg.group} -"
"d ${cfg.statePath}/tmp/pids 0750 ${cfg.user} ${cfg.group} -"
"d ${cfg.statePath}/tmp/sockets 0750 ${cfg.user} ${cfg.group} -"
"d ${cfg.statePath}/uploads 0700 ${cfg.user} ${cfg.group} -"
"d ${cfg.statePath}/custom_hooks/pre-receive.d 0700 ${cfg.user} ${cfg.group} -"
"d ${cfg.statePath}/custom_hooks/post-receive.d 0700 ${cfg.user} ${cfg.group} -"
"d ${cfg.statePath}/custom_hooks/update.d 0700 ${cfg.user} ${cfg.group} -"
"d ${gitlabConfig.production.shared.path}/artifacts 0750 ${cfg.user} ${cfg.group} -"
"d ${gitlabConfig.production.shared.path}/lfs-objects 0750 ${cfg.user} ${cfg.group} -"
"d ${gitlabConfig.production.shared.path}/pages 0750 ${cfg.user} ${cfg.group} -"
];
systemd.services.gitlab-sidekiq = {
after = [ "network.target" "redis.service" "gitlab.service" ];
wantedBy = [ "multi-user.target" ];
environment = gitlabEnv;
path = with pkgs; [
config.services.postgresql.package
gitAndTools.git
ruby
openssh
nodejs
gnupg
];
serviceConfig = {
Type = "simple";
User = cfg.user;
Group = cfg.group;
TimeoutSec = "infinity";
Restart = "on-failure";
WorkingDirectory = "${cfg.packages.gitlab}/share/gitlab";
ExecStart="${cfg.packages.gitlab.rubyEnv}/bin/sidekiq -C \"${cfg.packages.gitlab}/share/gitlab/config/sidekiq_queues.yml\" -e production -P ${cfg.statePath}/tmp/sidekiq.pid";
};
};
systemd.services.gitaly = {
after = [ "network.target" ];
wantedBy = [ "multi-user.target" ];
path = with pkgs; [
openssh
gitAndTools.git
cfg.packages.gitaly.rubyEnv
cfg.packages.gitaly.rubyEnv.wrappedRuby
];
serviceConfig = {
Type = "simple";
User = cfg.user;
Group = cfg.group;
TimeoutSec = "infinity";
Restart = "on-failure";
WorkingDirectory = gitlabEnv.HOME;
ExecStart = "${cfg.packages.gitaly}/bin/gitaly ${gitalyToml}";
};
};
systemd.services.gitlab-workhorse = {
after = [ "network.target" ];
wantedBy = [ "multi-user.target" ];
path = with pkgs; [
gitAndTools.git
gnutar
gzip
openssh
gitlab-workhorse
];
serviceConfig = {
PermissionsStartOnly = true; # preStart must be run as root
Type = "simple";
User = cfg.user;
Group = cfg.group;
TimeoutSec = "infinity";
Restart = "on-failure";
WorkingDirectory = gitlabEnv.HOME;
ExecStart =
"${cfg.packages.gitlab-workhorse}/bin/gitlab-workhorse "
+ "-listenUmask 0 "
+ "-listenNetwork unix "
+ "-listenAddr /run/gitlab/gitlab-workhorse.socket "
+ "-authSocket ${gitlabSocket} "
+ "-documentRoot ${cfg.packages.gitlab}/share/gitlab/public "
+ "-secretPath ${cfg.statePath}/.gitlab_workhorse_secret";
};
};
systemd.services.gitlab = {
after = [ "gitlab-workhorse.service" "gitaly.service" "network.target" "postgresql.service" "redis.service" ];
requires = [ "gitlab-sidekiq.service" ];
wantedBy = [ "multi-user.target" ];
environment = gitlabEnv;
path = with pkgs; [
config.services.postgresql.package
gitAndTools.git
openssh
nodejs
procps
gnupg
];
preStart = ''
cp -rf ${cfg.packages.gitlab}/share/gitlab/db/* ${cfg.statePath}/db
rm -rf ${cfg.statePath}/config
mkdir ${cfg.statePath}/config
if [ -e ${cfg.statePath}/lib ]; then
rm ${cfg.statePath}/lib
fi
ln -sf ${cfg.packages.gitlab}/share/gitlab/lib ${cfg.statePath}/lib
[ -L /run/gitlab/config ] || ln -sf ${cfg.statePath}/config /run/gitlab/config
[ -L /run/gitlab/log ] || ln -sf ${cfg.statePath}/log /run/gitlab/log
[ -L /run/gitlab/tmp ] || ln -sf ${cfg.statePath}/tmp /run/gitlab/tmp
[ -L /run/gitlab/uploads ] || ln -sf ${cfg.statePath}/uploads /run/gitlab/uploads
cp ${cfg.packages.gitlab}/share/gitlab/VERSION ${cfg.statePath}/VERSION
cp -rf ${cfg.packages.gitlab}/share/gitlab/config.dist/* ${cfg.statePath}/config
${optionalString cfg.smtp.enable ''
ln -sf ${smtpSettings} ${cfg.statePath}/config/initializers/smtp_settings.rb
''}
${pkgs.openssl}/bin/openssl rand -hex 32 > ${cfg.statePath}/config/gitlab_shell_secret
# JSON is a subset of YAML
ln -sf ${pkgs.writeText "gitlab.yml" (builtins.toJSON gitlabConfig)} ${cfg.statePath}/config/gitlab.yml
ln -sf ${pkgs.writeText "database.yml" (builtins.toJSON databaseConfig)} ${cfg.statePath}/config/database.yml
ln -sf ${pkgs.writeText "secrets.yml" (builtins.toJSON secretsConfig)} ${cfg.statePath}/config/secrets.yml
ln -sf ${./defaultUnicornConfig.rb} ${cfg.statePath}/config/unicorn.rb
# Install the shell required to push repositories
ln -sf ${pkgs.writeText "config.yml" (builtins.toJSON gitlabShellConfig)} /run/gitlab/shell-config.yml
[ -L ${cfg.statePath}/shell/hooks ] || ln -sf ${cfg.packages.gitlab-shell}/hooks ${cfg.statePath}/shell/hooks
${cfg.packages.gitlab-shell}/bin/install
chown -R ${cfg.user}:${cfg.group} ${cfg.statePath}/
chmod -R ug+rwX,o-rwx+X ${cfg.statePath}/
chown -R ${cfg.user}:${cfg.group} /run/gitlab
if ! test -e "${cfg.statePath}/db-created"; then
if [ "${cfg.databaseHost}" = "127.0.0.1" ]; then
${pkgs.sudo}/bin/sudo -u ${pgSuperUser} psql postgres -c "CREATE ROLE ${cfg.databaseUsername} WITH LOGIN NOCREATEDB NOCREATEROLE ENCRYPTED PASSWORD '${cfg.databasePassword}'"
${pkgs.sudo}/bin/sudo -u ${pgSuperUser} ${config.services.postgresql.package}/bin/createdb --owner ${cfg.databaseUsername} ${cfg.databaseName}
# enable required pg_trgm extension for gitlab
${pkgs.sudo}/bin/sudo -u ${pgSuperUser} psql ${cfg.databaseName} -c "CREATE EXTENSION IF NOT EXISTS pg_trgm"
fi
${pkgs.sudo}/bin/sudo -u ${cfg.user} -H ${gitlab-rake}/bin/gitlab-rake db:schema:load
touch "${cfg.statePath}/db-created"
fi
# Always do the db migrations just to be sure the database is up-to-date
${pkgs.sudo}/bin/sudo -u ${cfg.user} -H ${gitlab-rake}/bin/gitlab-rake db:migrate
if ! test -e "${cfg.statePath}/db-seeded"; then
${pkgs.sudo}/bin/sudo -u ${cfg.user} ${gitlab-rake}/bin/gitlab-rake db:seed_fu \
GITLAB_ROOT_PASSWORD='${cfg.initialRootPassword}' GITLAB_ROOT_EMAIL='${cfg.initialRootEmail}'
touch "${cfg.statePath}/db-seeded"
fi
# The gitlab:shell:create_hooks task seems broken for fixing links
# so we instead delete all the hooks and create them anew
rm -f ${cfg.statePath}/repositories/**/*.git/hooks
${pkgs.sudo}/bin/sudo -u ${cfg.user} -H ${gitlab-rake}/bin/gitlab-rake gitlab:shell:create_hooks
${pkgs.sudo}/bin/sudo -u ${cfg.user} -H ${pkgs.git}/bin/git config --global core.autocrlf "input"
# Change permissions in the last step because some of the
# intermediary scripts like to create directories as root.
chmod -R u+rwX,go-rwx+X ${gitlabEnv.HOME}
chmod -R ug+rwX,o-rwx ${cfg.statePath}/repositories
chmod -R ug-s ${cfg.statePath}/repositories
find ${cfg.statePath}/repositories -type d -print0 | xargs -0 chmod g+s
'';
serviceConfig = {
PermissionsStartOnly = true; # preStart must be run as root
Type = "simple";
User = cfg.user;
Group = cfg.group;
TimeoutSec = "infinity";
Restart = "on-failure";
WorkingDirectory = "${cfg.packages.gitlab}/share/gitlab";
ExecStart = "${cfg.packages.gitlab.rubyEnv}/bin/unicorn -c ${cfg.statePath}/config/unicorn.rb -E production";
};
};
};
meta.doc = ./gitlab.xml;
}